Alright, each commander will get the full income earned during multi-play or can decline to take the income and fines.
All bounties and vouchers that the helmsman (ship owner) receives are duplicated for each crewmember, making multicrew a great way to have fun with friends without missing out on money-making opportunities.
However, as they share the benefits, so too do they share the punishments. Any crime that the ship suffers is applied to all crewmembers equally. But when a Commander leaves or ends a session, the crew will have the option of avoiding taking the crimes with them, but in doing so, will lose all credits earned. It will be their choice.
Major combat buff benefit is the introduction of a separate power distribution for the additional crew members and the ability to flight extra player controlled fighters.
Every crewmember also has access to a power distributor pip that they can assign dynamically. This is in addition to the standard pips that the helm controls. This extra power distribution allows the ship to operate more effectively, increasing its capabilities in combat.
The fighter con role lets a crewmember launch and control a fighter, even if the helm has already launched a fighter using NPC crew. This allows multicrew ships to have two fighters active at a time. In addition, if the ship has enough fighters, both crewmembers can take on the fighter con role, meaning three human controlled ships can be flying at the same time.
So the ships will not be 200% more powerful with an additional crew member, but hopefully powerful enough to make the commanders feature used.